Submission #49039

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
49039	2018-05-21 13:18:29	polyfish	Wiring (IOI17_wiring)	C++14	100 / 100	105 ms	104012 KiB

wiring

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#include <bits/stdc++.h>
using namespace std;
typedef pair<int,bool> pie;
const bool BLUE = true, RED = false;
const int max_n = 200 * 1000; // TO BE DETERMINED
vector<pie> points;
long long d[max_n + 1], ps[max_n + 1];
int head[max_n], cnt[max_n];
long long val(int l, int r) {
  int m = head[r], x = r+1 - m, y = m - l;
  long long res = (ps[r+1] - ps[m]) - (ps[m] - ps[l]);
  if (x > y) res -= (long long)(x-y) * points[m-1].first;
  if (x < y) res += (long long)(y-x) * points[m].first;
  return res;
}
long long min_total_length (vector <int> red, vector <int> blue) {
  int n = blue.size(), m = red.size();
  for (int i = 0; i < n; i++) points.push_back(pie(blue[i], BLUE));
  for (int i = 0; i < m; i++) points.push_back(pie(red[i], RED));
  sort (points.begin(), points.end());
  n = points.size();
  for (int i = 1; i <= n; i++) ps[i] = ps[i-1] + points[i-1].first;
 
 
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• Subtask 1: 7 / 7
• Subtask 2: 13 / 13
• Subtask 3: 10 / 10
• Subtask 4: 25 / 25
• Subtask 5: 45 / 45